Prediction of Chevron Cracks in Multipass Drawing
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- SHIGA Akira
- 新日鐵住金(株),室蘭技術研究部
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- YAMASHITA Tomohiro
- 新日鐵住金(株),鉄鋼研究所
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- NEISHI Yutaka
- 新日鐵住金(株),室蘭技術研究部
Bibliographic Information
- Other Title
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- 多段引抜き加工時のシェブロンクラック発生予測
- タダン ヒキヌキ カコウジ ノ シェブロンクラック ハッセイ ヨソク
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Abstract
<p>The aim of this study was to examine the effect of accumulated equivalent plastic strain on the ductile fracture criterion. Spheroidized medium-carbon steel JIS-S55C was adopted as the test material. An investigation into the ductile crack initiation behavior of round-bar tensile specimens with/without circumferential notches was carried out. Tensile prestrain was applied by cold drawing. The stress triaxiality and accumulated equivalent plastic strain were calculated by the finite element method (FEM). The ductile fracture limit of tensile prestrained steel was expressed as a function of the stress triaxiality and accumulated equivalent plastic strain. The validity of the ductile fracture limit was confirmed by the prediction of chevron crack generation in multipass drawing.</p>
Journal
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- Journal of the Japan Society for Technology of Plasticity
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Journal of the Japan Society for Technology of Plasticity 60 (697), 39-44, 2019
The Japan Society for Technology of Plasticity
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Keywords
Details 詳細情報について
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- CRID
- 1390282763100350336
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- NII Article ID
- 130007603948
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- NII Book ID
- AN00135062
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- ISSN
- 18820166
- 00381586
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- NDL BIB ID
- 029536398
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed